ECO 391 Exam 1 – UKY questions with 100% correct answers -14.docx,
Exams of Nursing
The mean of the data set is the - ANSWERAverage of all the data values
The sample mean symbol is - ANSWER
The population mean symbol is - ANSWER
The sample mean is the point estimator of - ANSWERThe population mean
The sample mean equation is - ANSWER
The population mean equation is - ANSWER
The median is the value - ANSWERIn the middle when the data items are
arranged in ascending order
Whenever a data set has extreme values, the ____________ is the preferred
measure of central location - ANSWERThe median
,The mode is the - ANSWERMeasure of central location in a data set
The greatest frequency can occur at - ANSWERTwo or more different values
A data can have ____ mode, _____ mode, or ______ modes - ANSWER- No
- One (unimodal)
- Many (multimodal)
The weighted mean is relevant when - ANSWERSome observations contribute
more than others
The weighted mean for the sample is computed as - ANSWER
The range of a data set is the difference between the _________ and
_________ data values - ANSWER- Largest
- Smallest
-L-S
The variance is the _________ of the squared differences between each data
value and the _______ - ANSWER- Average
- Mean
The variance for a sample is computed - ANSWER
, The variance for a population is computed - ANSWER
The standard deviation of a data set is the positive _______________ of the
variance - ANSWERSquare root
The standard deviation for a sample is computed by - ANSWERs = √s^2
The variance cannot - ANSWERBe negative
The coefficient of variation indicates how large _________________ is in
relation to the mean - ANSWERStandard deviation
The coefficient of variation for a sample is computed as - ANSWER
The coefficient of variation for a population is computed as - ANSWER
The covariance describes ___________ of the linear relationship between
two variables, X and YH - ANSWERDirection
The correlation coefficient describes both _____________ and ___________
of the relationship between two variables, X and Y - ANSWER- Direction
- Strength
The covariance for a population is computed as - ANSWER
The covariance for a sample is computed as - ANSWER
Exams of Nursing
The mean of the data set is the - ANSWERAverage of all the data values
The sample mean symbol is - ANSWER
The population mean symbol is - ANSWER
The sample mean is the point estimator of - ANSWERThe population mean
The sample mean equation is - ANSWER
The population mean equation is - ANSWER
The median is the value - ANSWERIn the middle when the data items are
arranged in ascending order
Whenever a data set has extreme values, the ____________ is the preferred
measure of central location - ANSWERThe median
,The mode is the - ANSWERMeasure of central location in a data set
The greatest frequency can occur at - ANSWERTwo or more different values
A data can have ____ mode, _____ mode, or ______ modes - ANSWER- No
- One (unimodal)
- Many (multimodal)
The weighted mean is relevant when - ANSWERSome observations contribute
more than others
The weighted mean for the sample is computed as - ANSWER
The range of a data set is the difference between the _________ and
_________ data values - ANSWER- Largest
- Smallest
-L-S
The variance is the _________ of the squared differences between each data
value and the _______ - ANSWER- Average
- Mean
The variance for a sample is computed - ANSWER
, The variance for a population is computed - ANSWER
The standard deviation of a data set is the positive _______________ of the
variance - ANSWERSquare root
The standard deviation for a sample is computed by - ANSWERs = √s^2
The variance cannot - ANSWERBe negative
The coefficient of variation indicates how large _________________ is in
relation to the mean - ANSWERStandard deviation
The coefficient of variation for a sample is computed as - ANSWER
The coefficient of variation for a population is computed as - ANSWER
The covariance describes ___________ of the linear relationship between
two variables, X and YH - ANSWERDirection
The correlation coefficient describes both _____________ and ___________
of the relationship between two variables, X and Y - ANSWER- Direction
- Strength
The covariance for a population is computed as - ANSWER
The covariance for a sample is computed as - ANSWER
